CH111495A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH111495A
CH111495A CH111495DA CH111495A CH 111495 A CH111495 A CH 111495A CH 111495D A CH111495D A CH 111495DA CH 111495 A CH111495 A CH 111495A
Authority
CH
Switzerland
Prior art keywords
red
monoazo dye
preparation
yellowish
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Chemische Fabrik Rohn Pratteln
Original Assignee
Chem Fab Rohner A G Pratteln
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chem Fab Rohner A G Pratteln filed Critical Chem Fab Rohner A G Pratteln
Publication of CH111495A publication Critical patent/CH111495A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines     Honoazofar        bstoffes.       Es wurde gefunden, dass ein wertvoller       gelbst:ichig    roter Farbstoff. entsteht, wenn  man     diazotiertes        Mono-Benzoyl-m-phenylen-          diamin    mit 2 .     3-Oxynaphthoesäureanilid    kup  pelt.  



  Der Farbstoff bildet getrocknet ein gelb  stickig rotes Pulver, das sich in konzentrier  ter Schwefelsäure mit blaustichig roter Farbe  löst. Er liefert sehr lichtechte     Farblacke    und  kann auch auf der Faser erzeugt werden,  welche rein gelbstickig rot     angefärbt    wird.

    <I>Beispiel:</I>  21,2 Teile     Mono-Benzoyl-(meta-)phenylen-          diamin    werden mit 25 Teilen Salzsäure  20       Be    und 7 'feilen Nitrit auf bekannte  Weise     diazotiert.    Die     Dia.zolösung    wird mit  essigsaurem Natron kongoneutral gestellt  und unter gutem Rühren in eine aus  26,3 Teilen 2 . 3 -     Oxynaphthoesäureanilid,     15 Teilen     Natronlauge    30 % und 20 Teilen         rizinusölsulfosaurem    Natron mit 400 Teilen  Wasser hergestellte Lösung unter gutem  Rühren eingegossen.

   Nach beendeter Kupp  lung wird der ausgeschiedene Farbstoff fil  triert, gewaschen und     vorteilhaft    als Paste  verwendet. .



  Process for the preparation of a Honoazo dye. It was found that a valuable yellow: iig red dye. arises when one diazotized mono-benzoyl-m-phenylenediamine with 2. 3-oxynaphthoic anilide kup pelt.



  When dried, the dye forms a yellow, stuffy red powder that dissolves in concentrated sulfuric acid with a bluish red color. It provides very lightfast colored lacquers and can also be produced on the fiber, which is dyed purely yellowish red.

    <I> Example: </I> 21.2 parts of mono-benzoyl- (meta-) phenylenediamine are diazotized in a known manner with 25 parts of hydrochloric acid 20 Be and 7 'file nitrite. The Dia.zolösung is made Congo-neutral with sodium acetate and, with thorough stirring, in one of 26.3 parts 2. 3 - Oxynaphthoic anilide, 15 parts of sodium hydroxide solution 30% and 20 parts of castor oil sulfonic acid of sodium with 400 parts of water poured the solution prepared with thorough stirring.

   After the coupling is complete, the precipitated dye is filtered, washed and advantageously used as a paste. .

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Mono- azofarbstoffes, der getrocknet ein gelbstickig rotes Pulver bildet, das sich in konzentrier ter Schwefelsäure mit blaustichig roter Farbe löst, der sehr lichtechte Farblache liefert und der auch auf der Faser erzeugt werden kann, welche rein gelbstickig rot angefärbt wird, dadurch gekennzeichnet, dass man dia- zotiertes Monobenzoyl-(meta-)phenylendiamin mit 2. 3-Oxynaphthoesäureanilid kombiniert. PATENT CLAIM: Process for the representation of a monoazo dye which, when dried, forms a yellowish-red powder that dissolves in concentrated sulfuric acid with a bluish red color, which provides a very lightfast color puddle and which can also be produced on the fiber, which is stained purely yellowish-red is characterized in that diazotized monobenzoyl (meta-) phenylenediamine is combined with 2, 3-oxynaphthoic anilide.
CH111495D 1924-05-22 1924-05-22 Process for the preparation of a monoazo dye. CH111495A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH111495T 1924-05-22
CH109706T 1924-05-22

Publications (1)

Publication Number Publication Date
CH111495A true CH111495A (en) 1925-08-17

Family

ID=25707605

Family Applications (1)

Application Number Title Priority Date Filing Date
CH111495D CH111495A (en) 1924-05-22 1924-05-22 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH111495A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378826A1 (en) * 1977-02-01 1978-08-25 Montedison Spa WATER INSOLUBLE MONOAZOIC DYES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378826A1 (en) * 1977-02-01 1978-08-25 Montedison Spa WATER INSOLUBLE MONOAZOIC DYES

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